Turkish circling for 7 hrs

[Officer Kite]

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THY 35 circled for 7 hrs after departing Istanbul for Montreal ... why didn't they just dump their fuel does anyone know?

[Pugilistic Animus]

Wooo!

for ten characters

[Pugilistic Animus]

Maybe no fuel dump capability?

[DIBO]

this seems to confirm the absence of fuel dump nozzles

[Officer Kite]

interesting, i just somewhat assumed all aircraft of that size came automatically with fuel dump capabilities

[HEATHROW DIRECTOR]

Nope. What I suggest is you write to the airline and ask them to get their captain to provide you with a detailed explanation.........

[Officer Kite]

That's a good idea, can you provide me with the details?

[mgahan]

Advantage server

[_Phoenix]

medical emergency

A 16-year-old passenger on our flight number TK35 to Montreal on 13 October 2017 got sick shortly after departure, as the health of our passengers is of the utmost importance we decided to return to Istanbul.

The aircraft is now holding and burning fuel until it reaches a safe landing weight. Our team has been informed that the last health condition of our passenger is very good. We will change our crew and prepare our aircraft again for a new flight to Montreal.

More details here

[B2N2]

With a true medical emergency you wouldn’t hold burning fuel, you’d land overweight.

[Council Van]

Originally Posted by B2N2

With a true medical emergency you wouldn’t hold burning fuel, you’d land overweight.

Perhaps they spoke to aeromedical or some similar agency who told them it was not necessary to land immediately.

[mcdhu]

Officer Kite - the regulations tell us that when the Max Takeoff Weight (MTOW), less the fuel necessary for a 15 minute flight (including takeoff, approach and landing at the departure airport) is more than the maximum go-around weight, a fuel jettisoning system must be available.
So its nothing to do with the size of the aircraft, it's to do with the aircraft's go-around performance at MTOW with an engine out.

[Pugilistic Animus]

Yes the OEI(one engine inoperative) is for'the approach climb'
Landing Climb is AEO ( All engines operating)

[Officer Kite]

Originally Posted by mcdhu

Officer Kite - the regulations tell us that when the Max Takeoff Weight (MTOW), less the fuel necessary for a 15 minute flight (including takeoff, approach and landing at the departure airport) is more than the maximum go-around weight, a fuel jettisoning system must be available.
So its nothing to do with the size of the aircraft, it's to do with the aircraft's go-around performance at MTOW with an engine out.

As far as I can remember from my theory, a fuel jettison system must be provided for all aircraft where the MTOM significantly exceeds the MLM. This pretty much covers all widebody/long haul aircraft. Just seemed very bizarre to see it.

I only passed my exam in this quite recently and EASA actually have a question specifically asking under what circumstances must a jettison system be provided ... what I've said above is the correct answer.

What if it was something more serious and they couldn't circle for 7 hrs ... would they have risked structural failure?

[wiggy]

No idea what the rules currently demand but it appears from sources elsewhere that a fuel jettison system is/was a customer option on the type in question.

[AerocatS2A]

Originally Posted by Officer Kite

What if it was something more serious and they couldn't circle for 7 hrs ... would they have risked structural failure?

You just land overweight. It requires an inspection but unless you bang it on you're not likely to break anything.

[Pugilistic Animus]

I believe that fuel dump systems are only required on 3 and 4 engine jet in order to be able to meet the double failure case...I may be wrong

[Musician]

Relevant PPruNe discussion from 2004: http://www.pprune.org/tech-log/14348...fuel-dump.html